急性capate补充对训练男性CrossFit®期间肌肉耐力表现的剂量反应:一项随机、交叉和双盲研究

IF 1.9 Q3 ENDOCRINOLOGY & METABOLISM Human Nutrition and Metabolism Pub Date : 2023-09-01 DOI:10.1016/j.hnm.2023.200215

Marcelo da Silva Mesquita Oliveira , Paulo Renan Macêdo , Nathanael Leal Santana , Flávio Antônio de Sousa Nunes , Jason Michael Cholewa , Priscila Almeida Queiroz Rossi , Ahecio Kleber Araújo Brito , Nelo E. Zanchi , Fabrício Eduardo Rossi

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引用次数: 0

摘要

本研究旨在验证CrossFit®期间Capsiate (CAP)对肌肉耐力阻力训练的急性效果，并比较两种急性剂量CAP补充(12 mg vs. 24 mg)对训练男性的影响。方法采用随机、交叉和双盲设计，17名具有至少1年CrossFit®(CF)经验的训练男性在锻炼前45分钟补充12或24 mg CAP或安慰剂。参与者随机进行了三次训练，间隔七天，他们应该在20分钟内完成尽可能多的重复训练，包括5次引体向上，10次俯卧撑和15次空气深蹲。感知的速度努力(RPE)后立即分析运动和静止心率,5、10、15、20 min.ResultsThere剂量重复的数量并没有显著差别(安慰剂= 620.5±137.8和12毫克= 627.7±99.8 vs . 24毫克= 631.3±120.1重复,p = 0.768,η2 = 0.02)和RPE(安慰剂= 7.4±1.3和12毫克= 7.5±0.9 vs . 24毫克= 7.3±1.5,p = 0.772,η2 = 0.02)。心率在锻炼过程中增加(p <0.001)，但未观察到显著的剂量-时间相互作用(p = 0.109， η2 = 0.09)。综上所述，12和24 mg CAP并没有改善训练男性CF运动中的肌肉耐力表现、RPE和心率。

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Dose-response of acute capsiate supplementation on muscle endurance performance during CrossFit® in trained men: A randomized, crossover and double-blind study

Objectives

This study aimed to verify the acute effect of Capsiate (CAP) on muscle endurance resistance training during CrossFit® and to compare the effects of two acute doses of CAP supplementation (12 vs. 24 mg) in trained men during this workout.

Methods

Using a randomized, crossover and double-blind design, 17 trained males with at least 1 year of CrossFit® (CF) experience were supplemented with 12 or 24 mg of CAP or placebo 45 min before the workout. The participant performed three random sessions separated by seven days, where they should complete as many repetitions as possible in 20 min, consisting of five pull-ups, 10 push-ups, and 15 air squats. The rate of perceived effort (RPE) was analyzed immediately after exercise and the heart rate at rest, five, 10, 15 and 20 min.

Results

There was no significant difference between doses for the number of repetitions (Placebo = 620.5 ± 137.8 vs. 12 mg = 627.7 ± 99.8 vs. 24 mg = 631.3 ± 120.1 repetitions, p = 0.768, η² = 0.02) and RPE (Placebo = 7.4 ± 1.3 vs. 12 mg = 7.5 ± 0.9 vs. 24 mg = 7.3 ± 1.5, p = 0.772, η² = 0.02). The heart rate increased across workouts (p < 0.001) but no significant dose time interaction was observed (p = 0.109, η² = 0.09).